Search found 193 matches

by Bavi_H
Mon Feb 05, 2024 3:06 pm
Forum: NESdev
Topic: Kaiketsu Yanchamaru 3 - PPU EXT output mode
Replies: 4
Views: 464

Kaiketsu Yanchamaru 3 - PPU EXT output mode

I discovered Kaiketsu Yanchamaru 3 sets the PPU EXT output mode. (While starting to investigate a romhacking request for this game, Mesen 2's debugger kept breaking unexpectedly, and I eventually noticed it was because the "Break on... PPU EXT output mode" box was checked.) In the followin...
by Bavi_H
Tue Nov 14, 2023 9:57 am
Forum: NES Graphics
Topic: Nintendo/Ikegami's 80s Arcade graphics chip?
Replies: 26
Views: 6138

Re: Nintendo/Ikegami's 80s Arcade graphics chip?

The Wikipedia article on Sprites mention the specifications on sprites from the aforementioned games. How does it compare to the NES graphics processor? In the Wikipedia article on sprites, the data table has information for both the Donkey Kong arcarde hardware and for the NES, so you could compar...
by Bavi_H
Wed Oct 25, 2023 8:55 pm
Forum: Homebrew Projects
Topic: Yume Kojo: Doki Doki Panic Disassembly
Replies: 8
Views: 3054

Re: Yume Kojo: Doki Doki Panic Disassembly

That also begs the question whether any other titles are known to have implemented a security measure like this, especially non-Nintendo titles The Cutting Room Floor describes the FDS version of The 3-D Battles of World Runner (Tobidase Daisakusen), developed by Square, also displays an anti-pirac...
by Bavi_H
Mon Sep 18, 2023 12:57 pm
Forum: General Stuff
Topic: Password protecting a web page
Replies: 10
Views: 1929

Re: Password protecting a web page

Disable Server Compression? Put Username And Password In URL? Here is a recent issue I encountered with a password protected folder. I password protected a folder with a large file in it in order to share the file with someone else. The other person was able to visit the link to the file, enter the...
by Bavi_H
Mon Sep 18, 2023 4:19 am
Forum: General Stuff
Topic: Password protecting a web page
Replies: 10
Views: 1929

Re: Password protecting a web page

My Test of Unreadable Password File In my cPanel, I went to the Files section and used the "Directory Privacy" item to set up a password protected folder. After going though that process, cPanel automatically created the .htaccess file in the web folder I selected, and created a correspon...
by Bavi_H
Sun Sep 17, 2023 9:05 pm
Forum: General Stuff
Topic: Password protecting a web page
Replies: 10
Views: 1929

Re: Password protecting a web page

My website uses Apache and cPanel and I recently set up a password protected folder. Here are some possible tips. I don't even know if it's Apache that my server is running. I think your server is using Apache. Your cPanel page probably looks something like this image: The cPanel Interface (from the...
by Bavi_H
Thu Aug 31, 2023 11:23 am
Forum: NESemdev
Topic: Using DOSBox with Linux Mint?
Replies: 14
Views: 4579

Re: Using DOSBox with Linux Mint?

The commands in the old Windows .BAT file were these... (for Linux, I renamed it "SMB1MA_BAT.SH") copy /b header.bin+smbdis02.bin+chr.bin smb1ma.nes pause However, the "copy" and "pause" commands are Windows-specific and thus are not recognized by Linux, so may I ask w...
by Bavi_H
Sun Aug 20, 2023 5:10 am
Forum: NESdev
Topic: Family Basic for the NES: Could it have been?
Replies: 5
Views: 1262

Re: Family Basic for the NES: Could it have been?

Marscaleb wrote: Sat Aug 19, 2023 10:13 pmI think the Family Basic required the disc system addon
Family Basic did not use the Disk System. You could connect a tape recorder to the keyboard to save and load files. The cartridge also had some battery-powered RAM. (2 AA batteries that you could replace.)
by Bavi_H
Sat Jul 22, 2023 11:44 am
Forum: NES Hardware and Flash Equipment
Topic: Curious missing sprite tile issue
Replies: 4
Views: 806

Re: Curious missing sprite tile issue

I believe the symptoms suggest a problem internal to the PPU, but I'm not as confident diagnosing the hardware side of things. (The NES's sprite memory or OAM (object attribute memory) is internal memory inside the PPU . I edited my previous post to add that I referred to the NESdev Wiki pages on PP...
by Bavi_H
Fri Jul 21, 2023 7:21 pm
Forum: NES Hardware and Flash Equipment
Topic: Curious missing sprite tile issue
Replies: 4
Views: 806

Re: Curious missing sprite tile issue

I like solving puzzles like this. Below I explain a possible lead about what might be going on. Someone more familiar with the hardware side of things may be able to tell if there's any way to fix the issue that's easier than replacing the PPU. My hypothesis is after the PPU decides the (up to) 8 sp...
by Bavi_H
Fri Jul 14, 2023 11:45 pm
Forum: NESdev
Topic: Automatic fix for games using $0D palette
Replies: 5
Views: 976

Re: Automatic fix for games using $0D palette

So how to automatize it? [...] we need to have a scratchpad (which is just an additional array), updated in the following conditions [...] after playing the game for a couple of minutes (exploring some of the places), we would get list of placed that need to be fixed in a ROM. I think this idea mig...
by Bavi_H
Sun May 28, 2023 9:39 pm
Forum: NESemdev
Topic: Error in F-1 Race (1984)
Replies: 108
Views: 67597

Re: Error in F-1 Race (1984)

Note that if you change the Game Genie ROM, never leave any of the GG's registers initialized. If you do, the chip seems to become damaged permanently after a short period of time. Several days to weeks, it seemed like. I fried a few, until I started doing it right. I find this interesting. Can you...
by Bavi_H
Fri May 12, 2023 5:01 am
Forum: Newbie Help Center
Topic: Debugging with Mesen
Replies: 12
Views: 2328

Re: Debugging with Mesen

I'm trying to implement a small math function. What's the best way to test a standalone function written in ca65? Do I have to assemble and build a .nes file just to debug my math function in Mesen? Mesen has a built-in minimal assembler: If you highlight some code in the debugger, right-click, and...
by Bavi_H
Tue Apr 11, 2023 5:24 am
Forum: NES Music
Topic: Converting NES Tunes from NTSC to PAL?
Replies: 10
Views: 2050

Re: Converting NES Tunes from NTSC to PAL?

I think SMB2J-2Q is asking how an emulator decides to automatically switch to PAL mode. Here are some ways emulators do that: If the NES file name ends in "(E)" before the ".nes" extension, some emulators will switch to PAL mode automatically. This is based on the often-used file...
by Bavi_H
Mon Apr 10, 2023 8:03 pm
Forum: NES Music
Topic: Converting NES Tunes from NTSC to PAL?
Replies: 10
Views: 2050

Re: Converting NES Tunes from NTSC to PAL?

PAL needs different period values from NTSC to achieve the same pitch. PAL needs different duration values in frames from NTSC to achieve the same tempo. [1] The conversion formulas are period_value_pal = (period_value_ntsc + 1) × (cpu_frequency_pal / cpu_frequency_ntsc) - 1 duration_value_pal = dur...